Community Engine

A Social Networking Plugin for Ruby on Rails

The Instant Social Network

CommunityEngine is a free, open-source social network plugin for Ruby on Rails applications. Drop it into your new or existing application, and you’ll instantly have all the features of a basic community site.

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Screen shots

Credits:

CommunityEngine is created by Bruno Bornsztein, a Ruby on Rails developer and entrepreneur based in St. Paul, Minnesota.
In 2006, he founded Curbly, LLC, whose publications currently include several community sites
.